<template>
	<div>
		<!-- 面包屑导航 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
		  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
		  <el-breadcrumb-item>商品管理</el-breadcrumb-item>
		  <el-breadcrumb-item>添加商品</el-breadcrumb-item>
		  
		</el-breadcrumb>
		<el-card>
			<!-- 提示区域 -->
			  <el-alert
			    title="添加商品信息"
			    type="info"
			    center
			    show-icon :closable="false">
			  </el-alert>
				<!-- 步骤条 -->
				<el-steps :space="200" :active="activeIndex-0" finish-status="success" align-center>
				  <el-step title="基本信息"></el-step>
				  <el-step title="商品参数"></el-step>
				  <el-step title="商品属性"></el-step>
					<el-step title="商品图片"></el-step>
					<el-step title="商品内容"></el-step>
					<el-step title="完成"></el-step>
				</el-steps>
				<el-form :model="addForm" :rules="addFormRules" ref="ruleFormRef" label-width="100px" label-position="top">
				  <el-tabs v-model="activeIndex" :tab-position="'left'" :before-leave="beforeTabLeave" @tab-click="tabClicked">
						<el-tab-pane label="基本信息"name="0">
                <el-form-item label="商品名称" prop="goods_name">
									<el-input v-model="addForm.goods_name"></el-input>
								</el-form-item>
								<el-form-item label="商品价格" prop="goods_price">
									<el-input v-model="addForm.goods_price"type="number"></el-input>
								</el-form-item>			
								<el-form-item label="商品重量" prop="goods_weight">
									<el-input v-model="addForm.goods_weight"type="number"></el-input>
								</el-form-item>			
								<el-form-item label="商品数量" prop="goods_number">
									<el-input v-model="addForm.goods_number"type="number"></el-input>
								</el-form-item>	
								<el-form-item label="商品分类" prop="goods_cat">
									 <el-cascader
									    v-model="addForm.goods_cat"
									    :options="cateList"
									    :props="cateProps"
									    @change="handleChange"></el-cascader>
								</el-form-item>		
						</el-tab-pane>
				    <el-tab-pane label="商品参数"name="1">
							<!-- 渲染表单的Item项 -->	
							<el-form-item :label="item.attr_name" v-for="(item,i) in manyTableData" :key="i">
								<!-- 复选框组 -->
								<el-checkbox-group v-model="item.attr_vals">
								    <el-checkbox border :label="item1" v-for="(item1,index) in item.attr_vals" :key="index"></el-checkbox>
								  </el-checkbox-group>
							</el-form-item>
						</el-tab-pane>
				    <el-tab-pane label="商品属性"name="2">
							<el-form-item :label="item.attr_name" v-for="(item,index) in onlyTableData" :key="index">
								<el-input v-model="item.attr_vals" ></el-input>
							</el-form-item>
						</el-tab-pane>
				    <el-tab-pane label="商品图片"name="3">
							<!-- action图片要上传到的后台api地址 -->
							<el-upload
							  :action="uploadURL"
							  :on-preview="handlePreview"
							  :on-remove="handleRemove"
							  list-type="picture"
								:headers="headerObj" :on-success="handleSuccess">
							  <el-button size="small" type="primary">点击上传</el-button>
							</el-upload>
						</el-tab-pane>
				    <el-tab-pane label="商品内容"name="4">
							<!-- 富文本编辑器组件 -->
							 <quill-editor
							    ref="myQuillEditor"
							    v-model="addForm.goods_introduce"
							   
							  />
								<el-button class="btnAdd" type="primary" @click="add">添加商品</el-button>
						</el-tab-pane>
				  </el-tabs>
				</el-form>	
		</el-card>
		<!-- 图片预览 -->
		<el-dialog
		  title="图片预览"
		  :visible.sync="previewVisible"
		  width="50%"
		  >
		  <img :src="previewPath" alt="" class="previewImg">
		  
		</el-dialog>
	</div>
</template>

<script>
	import _ from 'lodash'
	export default{
		data(){
			return{
				//图片上传组件的headers请求头对象
				headerObj:{
					Authorization:window.sessionStorage.getItem('token')
				},
				//上传图片的URL地址
				uploadURL:'https://www.liulongbin.top:8888/api/private/v1/upload',
				activeIndex:'0',
				addForm:{
					goods_name:'',
					goods_price:0,
					goods_weight:0,
					goods_number:0,
					goods_cat:[],
					//图片的数组
					pics:[],
					//商品的详情秒速
					goods_introduce:'',
					attrs:[]
				},
				addFormRules:{
					goods_name:[{required:true,message:'请输入商品名称',trigger:'blur'}],
					goods_price:[{required:true,message:'请输入商品价格',trigger:'blur'}],
					goods_weight:[{required:true,message:'请输入商品重量',trigger:'blur'}],
					goods_number:[{required:true,message:'请输入商品数量',trigger:'blur'}],
					goods_cat:[{required:true,message:'请输入商品数量',trigger:'blur'}]
				},
				//商品分类列表
				cateList:[],
				cateProps:{ expandTrigger: 'hover' ,label:'cat_name',value:'cat_id',children:'children'},
				//动态参数列表数据
				manyTableData:[],
				//静态参数列表数据
				onlyTableData:[],
				previewPath:'',
				previewVisible:false
			}
		},
		created() {
			this.getCateList()
		},
		computed:{
			cateId(){
				if(this.addForm.goods_cat.length===3){
					return this.addForm.goods_cat[2]
				}
				return null
			}
		},
		methods:{
			//添加商品
			add(){
				this.$refs.ruleFormRef.validate(valid=>{
					if(!valid) return this.$message.error('请填写必要的表单项')
					//执行添加的业务逻辑
				// 	const form=_.cloneDeep(this.addForm)
				// 	console.log(form==this.addForm)
				// form.goods_cat=	form.goods_cat.join(',')
				// console.log(form)
				//用JSON.stringify  和 JSON.parse进行深拷贝
				const form=JSON.stringify(this.addForm)
			const	formClone=JSON.parse(form)
			formClone.goods_cat=	formClone.goods_cat.join(',')
			console.log(formClone)
			
				//处理动态参数 处理静态属性
				this.manyTableData.forEach(item=>{
					const newInfo={attr_id:item.attr_id,attr_vals:item.attr_vals.join(' ')}
					this.addForm.attrs.push(newInfo)
				})
				this.onlyTableData.forEach(item=>{
					const newInfo={attr_id:item.attr_id,attr_vals:item.attr_vals}
					this.addForm.attrs.push(newInfo)
				})
				 formClone.attrs=this.addForm.attrs
				 console.log(formClone)
				 //发起请求 添加商品
				 //商品的名称必须唯一
			 this.$http.post('goods',formClone).then(res=>{
				 console.log(res)
				 if(res.data.meta.status!==201) return this.$message.error('添加商品失败')
				 this.$message.success('添加商品成功')
				 
				 this.$router.push('/goods')
			 })
			// if(res.meta.status)
				})
			},
			//监听图片上传成功的钩子
			handleSuccess(response){
				//将图片信息对象push到pics中
				console.log(response)
				const picInfo={pic:response.data.tmp_path}
				this.addForm.pics.push(picInfo)
				console.log(this.addForm)
			},
			//处理移除图片的操作
			handleRemove(file){
				console.log(file)
				const filePath=file.response.data.tmp_path
				const i=this.addForm.pics.findIndex(x =>{
					x.pic===filePath
				})
				this.addForm.pics.splice(i,1)
				console.log(this.addForm)
				},
			//处理图片预览效果
			handlePreview(file){
				this.previewPath=file.response.data.url
        this.previewVisible=true
			},
			//级联选择器变化触发
			handleChange(){
				if(this.addForm.goods_cat.length!==3) {this.addForm.goods_cat=[]; return this.$message.error('请选择三级选项')}
			},
		async	getCateList(){
	   const {data:res}= await this.$http.get('categories')		
			 if(res.meta.status!==200) return this.$message.error('获取商品分类数据失败')
			 this.cateList=res.data;
			 console.log(this.cateList)
			},
			beforeTabLeave(activeName,oldActiveName){
				//activeName 即将离开的name值 oldActiveName即将进入的name值
				console.log('即将'+activeName)
				console.log('进入'+oldActiveName)
				if(oldActiveName==='0'&&this.addForm.goods_cat.length!==3){
					this.$message.info('请先选中3级商品分类')
					return false
				}
			},
		async	tabClicked(){
				//证明访问动态参数面板
				if(this.activeIndex==='1'){
			const {data:res}=	await	this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'many'}})
			if(res.meta.status!==200) return this.$message.error('获取动态参数列表失败')
			this.manyTableData=res.data
			res.data.forEach(item=>{
		 item.attr_vals=	item.attr_vals.length===0?  []:item.attr_vals.split(' ');
			console.log(item.attr_vals)
		
			})
				}else if(this.activeIndex=='2'){
				const {data:res}=await	this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'only'}})
				if(res.meta.status!==200) return this.$message.error('获取静态属性失败')
				this.onlyTableData=res.data
				
				}
				
			}
		}
	}
</script>

<style scoped="scoped" lang="less">
	.el-steps{
		text-align: left;
		margin-top: 20px;
		line-height: 20px;
	}
	.el-form-item{
		text-align: left;
	}
	.el-checkbox{
		// 上右下左
		margin: 0 10px 0 0 !important;
	}
	.previewImg{
		width: 100%;
	}
	.btnAdd{
		margin-top: 15px;
		
	}
	.el-main{
		// text-align: left;
	}
	.el-tabs{
		 text-align: left;
	}
	.el-card{
		line-height: 20px;
	}
</style>
